On Tue, Nov 18, 2008 at 8:32 AM, Hamish <[EMAIL PROTECTED]> wrote: > Hamish wrote: >> I have a 5 layer vector map created with v.in.ogr's GPX >> driver. > .... >> also I get a number of warnings like: >> WARNING: SQLite driver: unable to parse decltype: datetime >> WARNING: SQLite driver: unable to parse decltype: datetime >> WARNING: SQLite driver: column 'time', SQLite type >> 3 is not supported >> >> ? >> (timestamps are rather important to tell overlapping tracks >> apart) > > some more info: > > ogr2ogr gives this warning for GPX->shp: > Warning 6: Field time create as date field, though DateTime requested. > Warning 6: Field time create as date field, though DateTime requested. > Warning 6: Field time create as date field, though DateTime requested. > > and time column in track_points shapefile is empty when it has a value, > and 0 when not. In GRASS with v.in.ogr track_points layer fills in > previous column (elevation) in time column when there is no timestamp, > or real timestamp when it does have it. mmph.
Could this be related: http://trac.osgeo.org/gdal/ticket/2474 "DateTime -> Date write support in Shapefile support" ? Markus > shp uses dbf, which will cut column names at 10 chars, but output layers > are named well (route_points, routes, track_points, tracks, waypoints) > which are lost when called grass layers 1-5. > > > Hamish > > > > > > _______________________________________________ > grass-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-user > -- Open Source Geospatial Foundation http://www.osgeo.org/ http://www.grassbook.org/ _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
